Open Stack

Hi all,

I'm still working on this issue, and here are the logs of this.
Sending a request from Keystone to the Nova API, such as 'openstack server list', will result in the following error regardless of the timeout occurring:
cat /var/log/httpd/nova_api_wsgi_error.log
[Thu Oct 20 15:13:04.358981 2022] [wsgi:warn] [pid 2611850] mod_wsgi (pid=2611850): Callback registration for signal 12 ignored.
[Thu Oct 20 15:13:04.359279 2022] [wsgi:warn] [pid 2611850]   File "/var/www/cgi-bin/nova/nova-api", line 52, in <module>
[Thu Oct 20 15:13:04.359291 2022] [wsgi:warn] [pid 2611850]     application = init_application()
[Thu Oct 20 15:13:04.359297 2022] [wsgi:warn] [pid 2611850]   File "/usr/lib/python3.6/site-packages/nova/api/openstack/compute/wsgi.py", line 20, in init_application
[Thu Oct 20 15:13:04.359299 2022] [wsgi:warn] [pid 2611850]     return wsgi_app.init_application(NAME)
[Thu Oct 20 15:13:04.359302 2022] [wsgi:warn] [pid 2611850]   File "/usr/lib/python3.6/site-packages/nova/api/openstack/wsgi_app.py", line 125, in init_application
[Thu Oct 20 15:13:04.359304 2022] [wsgi:warn] [pid 2611850]     init_global_data(conf_files, name)
[Thu Oct 20 15:13:04.359313 2022] [wsgi:warn] [pid 2611850]   File "/usr/lib/python3.6/site-packages/nova/utils.py", line 1123, in wrapper
[Thu Oct 20 15:13:04.359314 2022] [wsgi:warn] [pid 2611850]     return func(*args, **kwargs)
[Thu Oct 20 15:13:04.359317 2022] [wsgi:warn] [pid 2611850]   File "/usr/lib/python3.6/site-packages/nova/api/openstack/wsgi_app.py", line 103, in init_global_data
[Thu Oct 20 15:13:04.359319 2022] [wsgi:warn] [pid 2611850]     version, conf=CONF, service_name=service_name)
[Thu Oct 20 15:13:04.359322 2022] [wsgi:warn] [pid 2611850]   File "/usr/lib/python3.6/site-packages/oslo_reports/guru_meditation_report.py", line 153, in setup_autorun
[Thu Oct 20 15:13:04.359323 2022] [wsgi:warn] [pid 2611850]     version, service_name, log_dir)
[Thu Oct 20 15:13:04.359326 2022] [wsgi:warn] [pid 2611850]   File "/usr/lib/python3.6/site-packages/oslo_reports/guru_meditation_report.py", line 186, in _setup_signal
[Thu Oct 20 15:13:04.359328 2022] [wsgi:warn] [pid 2611850]     lambda sn, f: cls.handle_signal(

Does someone can kindly help me to solve the issue or give me some clues like parameter changes that can be expected to be effective?

>-----Original Message-----
>From: 岸本 幸宏
>Sent: Monday, October 24, 2022 11:46 AM
>To: openstack-discuss at lists.openstack.org
>Cc: opetech-scg at kddi.com
>Subject: [Cinder][Nova]Zombie process prevention for Cinder and Nova APIs
>
>Hi all,
>I'm trying to fix issues of spawning zombie processes for Cinder and Nova APIs during instantiation in an IaC (Ansible
>which is not openstack-ansible).
>Does someone can kindly help me to solve the issue or give me some clues like parameter changes that can be expected
>to be effective?
>
>- Issues
>The cinder api service process(port: 8776) existed in a zombie state.
>The neutron api service process(port: 9696) required for nova existed in a zombie state.
>
>- What the IaC does
>Use an existing tenant to create a network and subnet, then use 8volumes to instantiate 8VMs.
>
>- Workarounds and what I've done so far
>Identify and kill zombie processes.
>
>- Environment
>OS: CentOS Stream 8
>Kernel: 4.18.0-408.el8.x86_64
>OpenStack: Yoga(Deployed by PackStack: https://www.rdoproject.org/install/packstack/)
>Nova: 25.0.1
>Neutron: 20.2.0
>Cinder: 20.0.1
>KeyStone: 21.0.0
>
>--
>Yukihiro Kishimoto
>Technologist
>KDDI Co., Ltd.
>Tokyo Japan